Question 938436
Seeing a formal method would be an advantage.


{{{f(g(x))=1/(x^3-7x+2)}}}


One possible function appears to be {{{1/g}}}.  Based on that, another function should be {{{g=x^3-7x+2}}}.


Naming was uncertain at first trying to pick functions.  Naming for g was picked after first trying to figure the function definitions occurring.
R=1/X, and W=x^3-7x+2  were like what first seemed to occur.


{{{f(x)=1/x}}},  and {{{g(x)=x^3-7x+2}}}.